Immobilized palladium nanoparticles on silica–starch substrate (PNP–SSS): As a stable and efficient heterogeneous catalyst for synthesis of p-teraryls using Suzuki reaction

Immobilized palladium nanoparticles on silica–starch substrate (PNP–SSS) were found to be an efficient reusable catalyst for excellent synthesis of teraryls using Suzuki reaction. The catalytic reactivity of PNP–SSS was examined over a set of substrates, demonstrating that it is reactive toward a variety of functionalities. In this process, the PNP–SSS catalyst can be reused more than six times with almost consistent efficiency and can be recovered by simple filtration.

Graphical abstractAn efficient and environmentally friendly synthetic route for the preparation of p-teraryls using a Suzuki reaction of 1,4-dihalides and boronic acids catalyzed by immobilized palladium nanoparticles on silica–starch substrate (PNP–SSS) has been developed.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Immobilization of Pd nanoparticles on Silica–Starch-Substrate (PNP–SSS). ► Green and efficient catalyst for Suzuki reaction of 1,4-dihalides & boronic acids. ► Effective and environmentally friendly synthetic route for preparation of p-teraryls. ► The catalyst can be reused more than six times with almost consistent efficiency.